Electronic calculator for performing restoring decimal division



ELECTRONIC CALCULATOR FOR PERFORMING RESTORING DECIMAL DIVISION OriginalFiled 00$. 28, 1953 Oct. 21, 1969 R. A. RAGEN ETAL.

153 Sheets-Sheet 1 mm 6 w J A s m m w w PIE- 1 ATTORNEYS Oct. 21, 1969R. A. RAGEN ETAL 3,474,238

ELECTRONIC CALCULATOR FOR PERFORMING RESTORING DECIMAL DIVISION OriginalFiled 001,. 28; 1963 155 Sheets-Shem :4

mm- HI HH Oct. 21, 1969 ARAGEN ErAL 3,474,238

ELECTRONIC CALCULATOR FOR PERFORMING RES'ICRING DECIMAL DIVISIONOriginal Filed Oct. 28', 1963 153 Sheets-Sheet 4 MUHH Oct. 21, 1969 RA.RAGEN E'rim. 3,474,238

. ELECTRONIC CALCULATOR FOR PERFORMING IIESTORING DECIMAL DIVISIONOriginal Filed 001.. 2a. 1963 155 Sheets-Sheet 5 FUP FLOP EF. FF FF ourI ov -sv "I" 1' av -ev "l" 111 ov ev "I" f 10 2| FF,

20 B EB g n I9 E Q 3 l8 17 FF. H O I67 1 2 FII3 B 9q TRANSFER 9@ P08.TRANSITION NEG. LEVEL e COMPLEMENT Pos. LEvEL 4 RESET 9@ NEG. TRANSITIONSET v FIE B ONE Oct. 21, 1969 R R N ETAL ELECTRONIC CALCULATORFOR-PERFORMING RESIORING DECIMAL DIVISION Original Filed 001.. 28. 1963155 Sheets-Sheet 1O 59 LL 3 2 NC; .1. Y mi N. m w m. T M EY m m E. 6 mum l- N N U c e 0 up 5 n. M m M E w I o; 2 5 w Nm 2.? wllllll 1 K m E mpn; w ll m 4%. .52 m 3 w 3 5 V l. 2 1 A n ,v 3 w n I W V Tk c u w ll w Tm s F m n m 53 Q E v E 22 in; v E l m8 3 w. w #1 5 32 6 m 5:: 3n". w E30 9 R 4 Oct. 21, 1969 a. A. RAGEN ET AL ELECTRONIC CALCULATOR FORPERFORMING RESTORING DEGIMAL DIVISION Original Filed 001.. 2.8,' 1963135 Sheets-Sheet 12 ADD n ADD AND O/U-l. ADD MHZ T AGO FF 3=IL4 ADD3::u4 3:2L7 3:3Ll7 sue 5=u 2 "4L3 BORROW FF' AND 1 5=2Le 01 clu-usAccrF.

A00. Acc FF ADD SIGN AND ACC FFI Acc FF. FF.

Q 0 cm-L5 3ilL5 SUB CLEAR A m anus I 3 LI W 3:215

3:3Ll0 sue 2:|T5 AND ACC FF C/U-Ll |=4 R4 COMP com" 6:3

I=4YR5 M 3:1L6 60 312L4 3:3L2 2:5u4

FIE 1? Oct. 21, 1969 R. A. RAGEN Erm. 3,474,238 ELECTRONIC CALCULATORFOR PERFORMING 'RESIORING DECIMAL DIVISION Original Filed on. 28. 1965155 Sheets-Sheet 1:5

FIE-+13 DIVIDE DEOODER mm M N hm MN wz N N mm N N mm u ma N N E M m Oct.21, 1969 R. A. RAGEN AL ELECTRONIC CALCULATOR FOR PERFORMING RESTORINGDECI MAL DIVISION Original Filed 001.. 28, 1963 155 Sheets-Sheet 14 wENABLE JUMP TO mm a I 2:2 m 2; 1'5 2:3Bl

' |.(sropcTL cm) 22 R2 2 ETPLABLE JUMP 0a 07 2:382'34" w o 2:383 CONTROLI 2:2 R4 ENABLE JUMP TO M AT n 2:354 2= T9 coumzn y 2:: as

2 385 nass'r FF4 a FFQ OFQCTLCNTR Ba 4. gas 4:4 R3 Tamas a. 22 R8 JUMPT0 04 COMMAND 2:388

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eoRRow FF an R3 MULT CNTR MULT F3 RI? DIV I13 Rl9 FII3 1 ELECTRONICCALCULATOR FO R PERFORMING RESTORING DECIMAL DIVISION Original FiledOct. 28, 1963 Oct. 21, 1969 R. A} R G N :TAL

133 Sheets-Sheet 15 E m Bin 61% 0F MUN fl0\2v SEN 6 5" 6 6" 6 5m 3 ma3;. ll 5 P 5 mJmnnjzn fin 6 5%. 3 m& 1.! No A Sfin w- 639m 39 a 2 Wu SET8 -16 535 $56 is; =5 N... 3 22 we 33 a E. mum m0 8 MULTIIPLY DECODER mmmm mm mum hm Nu wz m m mm m m mm N n mm uum E N N Oct. 21, 1969 R. A.RAGEN ETAL 3,4 ELECTRONIC CALCULATOR FOR PERFORMING RESTORING DECIMALDIVISION Original Filed Oct. 28, 1963 Y 133 Sheets-Sheet l8 ADD 4R2, 23T2, 2=IT8 SUB 4R3, 2 l T5 COMP. i=4 R5 (A) IZSRIO E S In ADD sua MR5,2am

FIE 'E 3 (3") Oct. 21, 1969 I R, RAGEN ETAI. 3,474,238 ELECTRONICCALCULATOR FOR PERFORMING RBSTORING DRCIMAL DIVISION Original Filed Oct.28. 1963 1 Sheets-Sheet 19 ADD 4R2, Z ITB, 213T2 CLEAR I 3RI5 CLEAR ENT"2 RI FIE E4: (3:2

Oct. 21, 1969 R. A. RAGEN ETAL 3,474,238

ELECTRONIC CALCULATOR FOR PERFORMING RESTORING DECIMAL DIVISION OriginalFiled Oct. 28, 1963 135 Sheets-Sheet 2o COMP. i=4 R5 w4 s ms T (A---E)2=IT3 ADD |=4R2, 2:312, 2 lT8 FII3 E '5 (3 3)

